Proton Persona Sei Reliability, MOT Pass Rate & Common Faults
Free Proton Persona Sei car check
Is the Proton Persona Sei reliable? We analysed 1,738 real MOT tests across 413 vehicles to find out.
Got a specific Proton Persona Sei? Enter the reg for a free check:
The Proton Persona Sei is below average for reliability based on real UK MOT data. Common problems include parking brake: efficiency below requirements, steering rack gaiter split and tyre tread depth below requirements of 1.6mm. Here's everything you need to know before buying a used Proton Persona Sei.
Proton Persona Sei Number Plates
Number plates registered to a Proton Persona Sei. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Proton Persona Sei MOT Pass Rate by Year
How likely is a Proton Persona Sei to pass its MOT? Here's the pass rate for each registration year, newest first.
Proton Persona Sei Problems — What Goes Wrong?
The most common reasons a Proton Persona Sei fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Proton Persona Sei Mileage — What's Normal?
How many miles does a typical Proton Persona Sei owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Proton Persona Sei MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Proton Persona Sei year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1997 | 375 | 63.7% | 61,866 | 77,186 | 97,132 |
| 1996 | 476 | 63.0% | 63,336 | 75,716 | 94,091 |
| 1995 | 446 | 59.6% | 61,254 | 77,260 | 93,227 |
| 1994 | 370 | 60.8% | 64,956 | 81,465 | 103,620 |
How Long Does a Proton Persona Sei Last?
Based on 413 Proton Persona Sei vehicles on UK roads.
Proton Persona Sei Mileage Distribution
Total mileage recorded across all Proton Persona Sei MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Proton Persona Sei
Based on MOT pass rates across all registration years with sufficient test data.
63.7% MOT pass rate from 375 tests
59.6% MOT pass rate from 446 tests
The best year to buy a used Proton Persona Sei is 1997, which has the highest MOT pass rate at 63.7% across 375 tests. The 1995 model year has the lowest pass rate at 59.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Proton Persona Sei Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Proton Persona Sei THIS CAR | 61.9% | 1,738 | 77,206 mi | 32 yrs |
| Proton Persona | 66% | 104,196 | 68,588 mi | 32 yrs |
| Proton GEN-2 | 70.5% | 59,272 | 46,580 mi | 22 yrs |
| Proton Wira | 70.1% | 57,151 | 47,970 mi | 26 yrs |
| Moto Roma Uq 300 (quad Bike) | 77.5% | 530 | 898 mi | 22 yrs |
Compared to the Proton Persona (66.0% pass rate) and the Proton GEN-2 (70.5% pass rate), the Proton Persona Sei trails behind on MOT reliability.
Found a Proton Persona Sei you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Proton Persona SeiShould you buy a used Proton Persona Sei?
The Proton Persona Sei has an overall MOT pass rate of 61.9% across 1,738 real MOT tests — below the UK average, so reliability should be a key concern.
The most common problems on the Proton Persona Sei are parking brake: efficiency below requirements (231 recorded failures), steering rack gaiter split (193), and tyre tread depth below requirements of 1.6mm (187). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Proton Persona Sei owner drives around 6,020 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Proton Persona Sei models stay on UK roads for around 32 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.